<h2>Full example</h2>
<pre><code>syntax = "proto3";

package foo.generated;
option java_package = "org.foo.generated";
option optimize_for = SPEED;

// What's up with all the foo?
message Foo {

  message Bar {

    optional string key   = 1;
    optional Foo value = 2;
    optional string value_raw = 3 [deprecated=true];
  }

  enum Level {
    INFO  = 0;
    WARN  = 1;
    ERROR = 2;
  }

  repeated Property property = 1;
}</code></pre>
